Introduction
Use this guide to replace the battery in your Lenovo ThinkPad T15 Gen 2 Laptop.
For your safety, discharge the battery below 25% before disassembling your device. This reduces the risk of fire if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
Tools
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            Angle the pick down at about 30˚. 
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            Slide the pick along the front edge to release the clips securing the lower case. 
 
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            Insert an opening tool between the lower case and the chassis, just to the right of the USB port on the left edge. 
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            Pry the opening case up to release the clip next to the USB port. 
 
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            Insert an opening pick on the left edge above the USB port. Slide the pick all the way up to the ethernet port to release the clips. 
 
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            Insert an opening pick on the right edge near the corner. 
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            Slide the pick along the right edge all the way to the HDMI port to release the rest of the clips. 
 
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            Grip the pull tab on the battery connector with your fingers and gently pull away from the socket to disconnect it. 
 
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            Push the battery toward the top of the laptop to release its plastic clips. 
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            Lift the battery straight out of its recess and remove it. 
 
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To reassemble your device, follow these instructions in reverse order.
For optimal performance, calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.